145220430 has 32 divisors (see below), whose sum is σ = 359774208. Its totient is φ = 37476000.

The previous prime is 145220393. The next prime is 145220479. The reversal of 145220430 is 34022541.

145220430 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 145220397 and 145220406.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 77146 + ... + 79005.

It is an arithmetic number, because the mean of its divisors is an integer number (11242944).

Almost surely, 2^145220430 is an apocalyptic number.

145220430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

145220430 is an abundant number, since it is smaller than the sum of its proper divisors (214553778).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

145220430 is a wasteful number, since it uses less digits than its factorization.

145220430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156192.

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 145220430 is about 12050.7439604366. The cubic root of 145220430 is about 525.6248704781.

Adding to 145220430 its reverse (34022541), we get a palindrome (179242971).

The spelling of 145220430 in words is "one hundred forty-five million, two hundred twenty thousand, four hundred thirty".